So recently I haven't really been into sex, actually for awhile now. About 3-4 months. I'm just not…

So recently I haven't really been into sex, actually for awhile now. About 3-4 months. I'm just not turned on anymore an when me an my fiance do make love I usually just do it to satisfy him but I don't really enjoy it. But I hate hearing him complain a about not getting any an blah blah. I just don't feel attractive anymore and never feel affectionate like I use to. I use to be a baby for affection now I could care less an never want it. I just don't understand and just really scared I'm going to push my fiance away. :(